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TABLE 1 GROUNDWATER MONITORING AND CHEMICAL RESULTS <br /> FORMER REGAL STATION 603, 6425 PACIFIC AVENEUE, STOCKTON, CALIFORNIA <br /> WELL # CASING DATE DEPTH TO PROD VACUUM CORRECTED TOTAL PET BENZENE TOLUENE ETHYL XYLENES Methyl text-Butyl DISSOLVED <br /> ELEVATION TOP OF THICK AT WELL GW ELEV HYDROCARB BENZENE Ether OXYGEN <br /> FEET AMSL WATER HEAD FT AMSL GAS-RANGE 8020 8260 <br /> IN FEET IN FEET IN FEET PPM PPB PPB PPB PPB PPB PPB PPM <br /> MW-1 892 12/07/88 49 3 0 -40 38 20 400 400 200 300 <br /> 8 92 04/72/89 49 08 0 -40 15 <br /> 05/04/89 0 90 3000 6300 1300 5400 <br /> 8 92 05/22/89 49 0 0 02 -40 14 <br /> 8 92 08/24/84 53 81 1 26 -43 88 <br /> 8 92 10/10/89 53 78 0 125 -44 76 <br /> 10/28/89 0 - <br /> 8 92 11/02/89 54 12 0 04 -45 17 <br /> 8 92 11/30/89 53 2 0 -44 28 <br /> 8 92 01/12/90 52 08 0 -43 16 55 890 6200 720 11 000 <br /> 8 92 02/19/90 51 92 0 -43 00 <br /> 8 92 02/26/90 51 92 0 -43 00 <br /> 8 92 05/25/90 52 01 0 -43 09 35— :2611p Sb00 290 4800 <br /> 8 92 11/2'1/90 53 66 0 08 -44 68 no sample taken, product is clear yellow <br /> 8 92 03/29/91 53 66 0 -44 74 sheen of floating product <br /> 8 92 06/27/91 54 24 p -45 32 sheen of floating product <br /> 10 12 09/18/91 56 21 0 02 -46 07 floating product <br /> 10 12 12/17/91 54 06 0 005 -43 94 <br /> Floating product i <br /> 10 12 01/21/92 54 1 0 0 38 -44 36 floating product-sheen <br /> 10 12 02/04/92 54 09 0 125 0 -43 87 floating product-sheen- <br /> 10 12 03/10/92 53 68 0 01 0 46 -44 01 0 01 FEET OF FLOATING PRODUCT - CLEAR YELLOW <br /> 10 12 04/29/92 S3 6 0 0 00 -43 48 WATER IS CLEAR NO PRODUCT <br /> 10 12 06/18/92 54 8 0 0 00 -44 68 SHEEN OF FLOATING PRODUCT - CLEAR YELLOW <br /> 1D 12 07/16/92 55 0 0 35 -45 23 SHEEN OF FLOATING PRODUCT - CLEAR YELLOW <br /> 10 12 Oa/14/92 55 55 0 0 00 -45 43 SHEEN OF FLOATING PRODUCT - CLEAR YELLOW <br /> 10 12 09/22/92 55 68 0 NM 830 590 3500 750 26000 <br /> 10 12 09/25/92 55 85 0 1 25 -46 98 <br /> CERT SVY 12 45 10/08/92 55 86 0 1 34 -44 75 <br /> 12 45 11/11/92 55 62 0 1 67 -44 84 <br /> 12 45 12/09/92 55 34 0 3 47 -46 36 0 73 <0 3 <0 3 <0 3 17 <br /> 12 45 01/15/93 55 72 0 0 00 -43 27 <br /> 12 45 02/08/93 54 72 0 —7—o0 -44 27 <br /> 12 45 03/11/43 53 5 0 2 62 -43 67 1 9 3 3 <3 450 <br /> R1-DUPLIC 12 45 03/11/43 53 5 0 2 62 -43 67 2 2 <3 <3 <3 470 <br /> 12 45 04/15/93 52 7 1 0 3 84 -44 09 <br /> 12 45 05/18/93 49 62 0 2 91 -40 08 <br /> 12 45 06/14/93 51 4 0 4 12 -43 07 1 2 4-8 8 5 <3 0 130 <br /> 12 45 1 07/19/93 51 8 0 4 22 -43 57 <br /> 12 45 08/20/43 51 98 0 4 22 -43 75 <br />